Stainless Rubber (EPDM) Bonded Washers

18-8 stainless steel EPDM rubber bonded sealing washers, with an EPDM rubber seal bonded to the washer, to make a watertight seal under a screw head. We stock #8, #10, #12, #14, 5/16".

Specifications

Material: 18-8 stainless steel
Sizes: #8, #10, #12, #14, 5/16"
Seal: EPDM rubber bonded to stainless washer

Rubber (EPDM) Bonded Washers
18-8 Stainless Steel

Rubber (EPDM) Bonded Sealing Washers
Rubber Bonded Sealing Washers are used to create a waterproof seal when used under the head of a Stainless Hex Head Sheet Metal (Self Tapping) Screw or a Stainless Self-Drilling Screw.

Common Uses

Metal roofing and siding
Gutters and flashing
Sealing screw holes outdoors

FAQ

How tight should a bonded washer be?
Tighten until the rubber just starts to bulge at the edge. Overtightening squeezes the seal out and can leak.

Do I need a washer?
A flat washer spreads the load, protects the surface and stops the nut or head from digging in. Use a stainless washer with stainless fasteners.

Should I use 18-8 or 316 stainless?
18-8 is fine for most outdoor and wet jobs. 316 stainless adds molybdenum for better resistance to salt water, chlorides and many chemicals, so it is the better choice for boats, docks, pools and coastal sites. Contact us for 316 stainless.

Free shipping on orders over $100, and orders placed before noon EST ship the same day. Purchase orders are accepted from government agencies, schools, hospitals, municipalities and companies with established credit with The Nutty Company, Inc.